seat and roll cage problems

[355datsun280z]

Hello and thanks for taking the time and helping me figure out my problem. I have a 1977 280z and right now I have black leather summit sport racing seats that are fully reclineable and are like sparco or recaro seats but are rather big, wide and heavy. My car didn't come with seats and I had those racing seats laying around from a old project I sold and thought they would look good and work perfectly with 4 points and everything not realizing I couldn't install door bars on my cage. They fit and are installed in the car but now that I need to build a cage they are to wide to install door bars. The upper bolsters hit the door when its closed and the pillar. Really I want to buy some real sparco seats and been looking at the sparco sprints or the speed seats but can't find the dimensions of either seat and was wondering if either of those seats would fit and be able to install door bars on my cage with them in the car. If anyone knows the dimensions and size of either of those seats please let me know and or if you installed them in your own car and have pics please download them on here and let me know how they worked out for you and if you have a cage installed in your car with door bars how much room did you have left. Thanks for all the help and advice.